Year % of total employment (modeled ILO estimate) 1991 21.966476784502 1992 21.6268913891401 1993 21.3003587262051 1994 20.8208077224155 1995 20.3939877106821 1996 19.9025305594115 1997 20.0143157721321 1998 17.0923984134461 1999 17.5443902876068 2000 15.6023346764636 2001 14.3926583129316 2002 15.2206382452506 2003 14.2645219979621 2004 14.2360097149195 2005 13.6828975699785 2006 13.6908955728765 2007 12.8538823242698 2008 12.6806857164572 2009 13.1279013665108 2010 12.4171074158369 2011 12.0402358591634 2012 11.3592487455006 2013 11.0816913380001 2014 11.2594468614893 2015 9.71528936099707 2016 8.92699231655552 2017 9.57710511714629 2018 9.33004527364395 2019 8.78678948127583 2020 8.95288488546274 2021 8.00881323897151 2022 7.71336690610701